Xi 'an Town is located in the southwest of Taoyuan County, 90 kilometers away from the county seat. It is a remote mountainous town at the junction of Changde, Yiyang and Huaihua, with a total area of 2 10 square kilometers. There are 18 villages and 1 neighborhood committee in Xi 'an Town, with a total population of 15803 people. Xi 'an Town has a total area of 2 10 square kilometers, 18 natural villages, 1 neighborhood committees, 187 villagers' groups and a population of 15038 people. Xi 'an Town has an average elevation of 560 meters, and there are three peaks over 800 meters. The vegetation coverage rate is 95%. The black topsoil is very fertile, belongs to a cold and humid climate, and has unique natural conditions that are very suitable for the growth of medicinal materials. With the active promotion of higher-level organizations and the town party committee and government, Xi 'an Town built a 4000-mu Magnolia medicinal base in Xuejiachong Village on 200 14. In 2002, Tiantai Mountain Forest Farm established the first Gastrodia elata demonstration base in Xi, and the "0" generation and "1" generation improved varieties were cultivated and popularized in the whole town. Due to the suitable natural environment, there are more than 400 kinds of wild Chinese herbal medicines growing in Xi 'an Town. Wherein, Rhizoma Acori Graminei, Rhizoma Acori Graminei, Achyranthis Radix, Radix Clematidis, Radix Phytolaccae, Caulis Piperis, Cortex Mori, Radix Polygoni Multiflori, Radix Aconiti Kusnezoffii, Rhizoma Polygonati Odorati, Folium Bambusae, Radix Ophiopogonis, Radix Peucedani, Fructus Xanthii, Caulis Akebiae, Flos Lonicerae, Herba Patriniae, Caulis Spatholobi, Folium Pyrrosiae, Herba Leonuri, Herba Lycopi, Rhizoma Arisaematis, Tetrapanac